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  2. List of Microsoft Office filename extensions - Wikipedia

    en.wikipedia.org/wiki/List_of_Microsoft_Office...

    Legacy Legacy filename extensions denote binary Microsoft Word formatting that became outdated with the release of Microsoft Office 2007.Although the latest version of Microsoft Word can still open them, they are no longer developed.

  3. Carry (arithmetic) - Wikipedia

    en.wikipedia.org/wiki/Carry_(arithmetic)

    The same carry bit is also generally used to indicate borrows in subtraction, though the bit's meaning is inverted due to the effects of two's complement arithmetic. Normally, a carry bit value of "1" signifies that an addition overflowed the ALU, and must be accounted for when adding data words of lengths greater than that of the CPU. For ...

  4. Plus and minus signs - Wikipedia

    en.wikipedia.org/wiki/Plus_and_minus_signs

    The subtraction operator: a binary operator to indicate the operation of subtraction, as in 5 − 3 = 2. Subtraction is the inverse of addition. [1] The function whose value for any real or complex argument is the additive inverse of that argument. For example, if x = 3, then −x = −3, but if x = −3, then −x = +3. Similarly, −(−x) = x.

  5. Addition - Wikipedia

    en.wikipedia.org/wiki/Addition

    A number-line visualization of the algebraic addition 2 + 4 = 6. A "jump" that has a distance of 2 followed by another that is long as 4, is the same as a translation by 6. A number-line visualization of the unary addition 2 + 4 = 6. A translation by 4 is equivalent to four translations by 1.

  6. Subtraction - Wikipedia

    en.wikipedia.org/wiki/Subtraction

    Placard outside a shop in Bordeaux advertising subtraction of 20% from the price of the second perfume purchased. Subtraction (which is signified by the minus sign, –) is one of the four arithmetic operations along with addition, multiplication and division. Subtraction is an operation that represents removal of objects from a collection. [1]

  7. Spelling - Wikipedia

    en.wikipedia.org/wiki/Spelling

    Learning proper spelling by rote is a traditional element of elementary education, and divergence from standard spelling is often perceived as an indicator of low intelligence, illiteracy, or lower class standing. [4] Spelling tests are commonly used to assess a student's mastery of the words in the spelling lessons the student has received so ...

  8. Spelling bee - Wikipedia

    en.wikipedia.org/wiki/Spelling_bee

    This was the first year that spellers from Canada and New Zealand attended the competition. The final authority for words is the Webster's Third New International Dictionary. [4] The annual study list is available from Scripps, either online or in print. The National Senior Spelling Bee started in Cheyenne, Wyoming, in 1996. [8]

  9. Countdown (game show) - Wikipedia

    en.wikipedia.org/wiki/Countdown_(game_show)

    Countdown is a British game show involving word and mathematical tasks that began airing in November 1982. It is broadcast on Channel 4 and is most recently presented by Colin Murray, assisted by Rachel Riley with lexicographer Susie Dent. It was the first programme to be broadcast on Channel 4 and 90 series have been broadcast since its debut ...

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